STUDIES IN METHIONINE METABOLISM. II. FASTING PLASMA METHIONINE LEVELS IN NORMAL AND HEPATOPATHIC INDIVIDUALS IN RESPONSE TO DAILY METHIONINE INGESTION 1

Bioavailability comparison between herbal methionine and DL-methionine on growth performance and immunocompetence basis in broiler chickens

BACKGROUND:Herbal methionine can be compared relative toDl-methionine with evaluation of bioavailability of this source ofmethionine. OBJECTIVES: An experiment was carried out todetermine the relative bioefficacy of herbal methionine (H-Met)®relative to DL-methionine (DL-Met) on performance criteria andimmunocompetence of Met sources in male broilers. Atotal of 160male broilers were fed a Met-d...

N-terminal methionine removal and methionine metabolism in Saccharomyces cerevisiae.

Methionine aminopeptidase (MetAP) catalyzes removal of the initiator methionine from nascent polypeptides. In eukaryotes, there are two forms of MetAP, type 1 and type 2, whose combined activities are essential, but whose relative intracellular roles are unclear. Methionine metabolism is an important aspect of cellular physiology, involved in oxidative stress, methylation, and cell cycle. Due t...

Effect of Methionine Supplementation on Methionine Metabolism in Growing Cattle

Methionine is often the first limiting amino acid for growing cattle. This study was conducted to determine how methionine metabolism is regulated in the liver of growing steers. Six ruminally cannulated steers were used in a replicated 3 × 3 Latin square experiment. Either 0, 5, or 10 g/day L-methionine was infused into the abomasum. These treatments were designed to be deficient, adequate, an...

Studies in Methionine and Sulfur Metabolism. I. the Fate of Intravenously Administered Methionine, in Normal Individuals and in Patients with Liver Damage.

Methionine metabolism in human pregnancy.

BACKGROUND Hyperhomocysteinemia during pregnancy, which is a consequence of perturbations in methionine and/or folate metabolism, has been implicated in adverse outcomes such as neural tube defects, preeclampsia, spontaneous abortion, and premature delivery. The adaptive changes in methionine metabolism during pregnancy in humans have not been determined. OBJECTIVE Our objective was to examin...